How many places in Australia are called Tonga Hill?

There is one place named Tonga Hill in Australia.

All places in the world called "Tonga Hill".

Location Tonga Hill:

• South Australia

Cities

Kingston (5)
Gladstone (5)
Hamilton (5)
Woodstock (4)
Darlington (4)
Rosedale (4)
Richmond (4)
Gordon (4)
Windsor (4)
Newstead (4)
Cremorne (4)
Springfield (4)
Beaconsfield (3)
Bridgewater (3)
Elliott (3)
Forest Hill (3)
Red Hill (3)
Swan Reach (3)
Warburton (3)
Williamstown (3)
Middleton (3)
Wattle Flat (3)
Black Springs (3)
Flinders (3)
Huntly (3)
Sassafras (3)
Somerton (3)
Auburn (3)
Clarendon (3)
Derby (3)